73.257 BF2142  –  Noctuidae –  Hadeninae – Anarta myrtilli – Beautiful Yellow Underwing – (Linnaeus, 1761) Adult Macro:  CAT 1 – Distinctive species unlikely to be confused with others –       PDF Icon – click for Adult Macro Verification Guidelines

Blue –  Generally Common / Widespread        day-flying – Day-flying
Taxonomy:   Macro   >>  Noctuidae  >> Hadeninae
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: A small reddish-brown moth with white cross-line markings and a small white blotch in centre of forewing. Hind wing yellow with a black border along both leading and trailing edge.
Distribution:  A resident and diurnal species that is locally common on the upland moors of Derbyshire. 
Flight Period: May /  June /  July /  –  On the wing May – late July  Moth Activity: Diurnal   – occasionally flies on sunny days Photographed: Yes –  Photographed By: Steve Orridge  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Recorded dates for Common [Blue code Blue-coded] moths are not stored on the website at this current time.

Selected Images:  North Derbyshire – Steve Orridge ©



Distribution Map for Anarta myrtilli

Found 72 records
    ↳ 1 from After 2025
    ↳ 11 from 2020 - 2024
    ↳ 60 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

If the Map Layers function fails, just refresh the page and it should be OK after. Use the +- zoom on the top left, or on a tablet, use two fingers to zoom. Remember, the last layer you ticked is the one which displays the popup information - they sit on top of each other - de-select then re-select, to see the popup values.

Bedrock Geology ** indirectly affects moth distribution by influencing the type of habitat and food plants available in an area. In turn, this may affect the types of moths that can thrive, or where they can most likely be found.


NBN Atlas UK Distribution for – Anarta myrtilli

⚠️ Please wait for the map to load fully – do not click the link shown.


Note – the NBN Atlas datasets are listed in the map below and vary in their currency (uptodateness) – however, the map does give a general indication of the moth's distribution across the UK.

Visit NBN Site


Monthly Records By Year: Anarta myrtilli
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Anarta myrtilli
( data is based on 'Adult' stage records only. )


First/Last Recorded Dates: Anarta myrtilli
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

Click the colour discs below to Select/De-select as Required

Recordings By Year: Anarta myrtilli
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Anarta myrtilli
AGR: 0%   |   Total % Change: 0%


CUSUM Analysis: Anarta myrtilli
About this chart: CUSUM (Cumulative Sum) charts track long-term trends in moth populations [ filtered by 'Adult' and 'Mine' life stages ] by showing whether each year’s counts are above or below the historical average. Even small shifts build up over time, making trends of growth, stability, or decline easier to see. CUSUM highlights trend-consistency — asking: “Across the years, have moth counts mostly stayed above or below average?”
The data sample has 8 gap year/s here (zero records) between 2000 and 2025. The moth may have been present in those gap years, but no data was available. Too many year-gaps may exaggerate or skew the chart.

Counts for the current year (2025) are pro-rated based on data available up to month 8 (August) to provide a full-year equivalent.

Purple line rises = years better than average; falls = years worse than average.
Peak (best year) Trough (worst year) Growth periods Decline periods
Population peaked around 2010, reaching above average levels. The lowest population point occurred near 2008, showing a significant decline.

What the Y-axis "Cumulative Deviation" means: Cumulative Deviation shows the running total of how each year’s moth population count differs from the long-term average. i

Hectad (10kmx10km) Coverage: Anarta myrtilli
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Anarta myrtilli
( data includes Adult Stage only )

Flight Period chart – the grey hatched area above, which can cross one or more months, pictorially represents the best guess we have for this moth's flight periods [month/s]. The coloured lines represent the actual months seen in flight, from site observation records received between 2020-2025.

Records Behind the Map and Charts - Anarta myrtilli – 72 records available

Listed by Year - descending - scroll across to see all table columns

Site NameTetradDateCountStageSource
EdaleSK18I12/06/20251adultvc57_irecords_extract
Sheffield STW, UKSK28Q17/10/20241Larvavc57_irecords_extract
Edale, DerbyshireSK18D29/08/20241larvavc57_irecords_extract
Bar Brook Bridge, Bakewell SDE, UKSK27R05/07/20241Adultvc57_irecords_extract
Stanton, UKSK26L20/07/20241Larvavc57_irecords_extract
Derbyshire, UKSK26I10/08/20231Adultvc57_irecords_extract
Longdendale, Wildboar CloughSK09U13/08/20231adultvc57_irecords_extract
Houndkirk MoorSK28W08/08/20221Larvavc57_irecords_extract
Derbyshire, UKSK07M20/06/20221Adultvc57_irecords_extract
LightwoodSK07M28/06/20221adultvc57_irecords_extract
White Edge Moor NTSK27U15/06/20201Adultvc57_irecords_extract
Combs – WainstonesSK07I26/05/20201Not recordedvc57_irecords_extract
Ashop CloughSK09V07/07/20191Adultvc57_irecords_extract
Ashop CloughSK09V07/07/20191Adultvc57_irecords_extract
Derbyshire, UKSK07M11/07/20191Adultvc57_irecords_extract
Lightwood Resvr, BuxtonSK07M11/07/20191adultDanes_2019-2021
Totley Moor & MossSK27Y28/06/20191Adultvc57_irecords_extract
Birch ValeSK08I02/08/20181adultvc57_irecords_extract
Derbyshire, UKSK07M22/06/20181Adultvc57_irecords_extract
CupolaSK36I24/09/20161pre-adultvc57_irecords_extract
Middleton MoorSK17X09/07/20151Adultvc57_irecords_extract
Stainery CloughSK19T11/07/20141Adultvc57_irecords_extract
Burbage MoorSK28L07/09/20121Adultvc57_irecords_extract
Burbage Moor (wet flushes), Dore, SheffieldSK28L07/09/20121Larvaevc57_danes_bc_data
Bunsal Cob area, Errwood Resr, Whaley BridgeSK07C28/07/20121Larvaevc57_danes_bc_data
Bunsal Cob area, Errwood Resr, Whaley BridgeSK07C28/07/20121Larvaevc57_danes_bc_data
Wraggs Quarry,Beeley MoorSK26Y03/09/20116Larvaevc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y03/09/20116Larvaevc57_danes_bc_data
Beeley Moor, BeeleySK26Y26/06/20111Adultvc57_danes_bc_data
Beeley Moor, BeeleySK26Y26/06/20111Adultvc57_danes_bc_data
Beeley Moor (Slagmill Plantation)SK36E03/06/201010Adultvc57_danes_bc_data
Wragg's Quarry,Rowsley MoorSK26Y06/09/20092Larvaevc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y06/09/20092Larvaevc57_danes_bc_data
Slagmill Plantation,Beeley MoorSK36E01/05/20091Adultvc57_danes_bc_data
Slagmill Plantation,Beeley MoorSK36E28/05/20096Adultvc57_danes_bc_data
Carr Meadow Cottages,Glossop Rd,Little HayfieldSK08J05/06/20081Adultvc57_danes_bc_data
Carr Meadow Cottages,Glossop Rd,Little HayfieldSK08J06/06/20071Adultvc57_danes_bc_data
Beeley Moor TriangleSK26Y14/08/20062Larvavc57_irecords_extract
Beeley Moor TriangleSK26Y03/06/20061adultvc57_irecords_extract
Beeley Moor, BeeleySK26Z03/06/20061Adultvc57_danes_bc_data
Ladycroft Ave,BuxtonSK07S29/06/20061Adultvc57_danes_bc_data
Ladycroft Ave, BuxtonSK07S29/06/20061Adultvc57_danes_bc_data
Cross Green Cottages,Flint Lane,South DarleySK26Q31/07/20051Adultvc57_danes_bc_data
Longshaw National TrustSK28Q16/07/20001Adultvc57_irecords_extract
Longshaw Estate (National Trust)SK28Q16/07/20001Adultvc57_danes_bc_data
Longshaw Estate (National Trust)SK28Q16/07/20001Adultvc57_danes_bc_data
Hucklow EdgeSK17Y24/05/19971Adultvc57_irecords_extract
Hucklow Edge, Great HucklowSK17Y24/05/19971Adultvc57_danes_bc_data
Hucklow Edge, Great HucklowSK17Y24/05/19971Adultvc57_danes_bc_data
Leash Fen Area dry areaSK27W14/07/19951Adultvc57_irecords_extract
Leash Fen (area -dry), BaslowSK27W14/07/19951Adultvc57_danes_bc_data
Leash Fen (area -dry), BaslowSK27W14/07/19951Adultvc57_danes_bc_data
Slagmill Plantation,Beeley MoorSK36E23/05/19951Adultvc57_danes_bc_data
Slagmill Plantation,Beeley MoorSK36E23/05/19951Adultvc57_danes_bc_data
Hellbank Plantation, Beeley (site not precise)SK26Y03/08/19841Larvaevc57_danes_bc_data
Slagmill Plantation,Beeley MoorSK36E13/06/19631Adultvc57_danes_bc_data
Slagmill Plantation,Beeley MoorSK36E19/06/19631Adultvc57_danes_bc_data
Slagmill Plantation,Beeley MoorSK36E25/11/19621Larvaevc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z14/08/19591Larvaevc57_danes_bc_data
Beeley Moor, Beeley (site not precise)SK26Z14/08/19591Larvaevc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z17/05/19591Adultvc57_danes_bc_data
Wragg's Quarry,Rowsley MoorSK26Y17/05/19591Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precise)SK26Z17/05/19591Adultvc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y17/05/19591Adultvc57_danes_bc_data
Wragg's Quarry,Rowsley MoorSK26Y27/05/19581Adultvc57_danes_bc_data
Slagmill Plantation (moor opposite), Beeley MoorSK36E27/05/19583Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z31/05/19581Adultvc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y27/05/19581Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precise)SK26Z31/05/19581Adultvc57_danes_bc_data
Wragg's Quarry,Rowsley MoorSK26Y25/05/19571Adultvc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y25/05/19571Adultvc57_danes_bc_data
Eyam Moor, Nether Padley (site not precise)SK27J01/01/19421Adultvc57_danes_bc_data

Scroll to Top